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Design for testing soil ONLY. Before testing pH and pH, it is necessary to open the corresponding button on the back. 8"(200mm) long probe to reach root-deep into the soil being tested. 9 sunlight levels: LOW-, LOW, LOW+, NOR-, NOR, NOR+, HGH-, HGH, HGH+.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.